[Bug 1895482] Re: new update of Ubuntu Focal Fossa does not recognize any Wifi network

Mon Sep 14 00:05:46 UTC 2020

** Package changed: ubuntu => ubuntu-release-upgrader (Ubuntu)

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https://bugs.launchpad.net/bugs/1895482

Title:
  new update of Ubuntu Focal Fossa does not recognize any Wifi network

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  When the system was upgraded to Ubuntu version 20.04, WiFi stopped
  working. It does not recognize any network, or it does recognize it
  when the computer is turned on but soon after it stops recognizing it
  and the connection is lost, so there is no other option but to use the
  Internet connected with an Ethernet cable.

  The solution I found to this problem is to select from grub the Kernel versions that did not have this problem (5.3). That worked fine so far, but yesterday the kernel was updated again, and the system removed the 5.3 kernel working versions, so I can no longer select them from grub. 
  It only left several versions 5.4.0, which all have this same problem

  I downloaded the packages of various kernel 5.3.0 versions  (headers,
  modules and image) from https://packages.ubuntu.com/, and I can get
  them up fine from grub, but when I do this, for some reason the
  computer works very badly (the screens take time to load, the mouse
  moves slowly, the machine works slowly, not all the menu options
  appear, etc)

  diego at infra-ThinkPad-E490:~$ lsb_release -rd
  Description:	Ubuntu 20.04.1 LTS
  Release:	20.04

  diego at infra-ThinkPad-E490:~$ apt-cache policy pkgname
  N: Unable to locate package pkgname

  #Computer specs:

  infra-thinkpad-e490
      description: Computer
      width: 64 bits
      capabilities: smp vsyscall32
    *-core
         description: Motherboard
         physical id: 0
       *-memory
            description: System memory
            physical id: 0
            size: 15GiB
       *-cpu
            product: Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz
            vendor: Intel Corp.
            physical id: 1
            bus info: cpu at 0
            size: 3855MHz
            capacity: 4600MHz
            width: 64 bits
       *-network
                  description: Ethernet interface
                  product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
                  vendor: Realtek Semiconductor Co., Ltd.
                  physical id: 0
                  bus info: pci at 0000:04:00.0
                  logical name: enp4s0
                  version: 10
                  serial: e8:6a:64:e7:ea:91
                  capacity: 1Gbit/s
                  width: 64 bits
                  clock: 33MHz
                  capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
                  configuration: autonegotiation=on broadcast=yes driver=r8168 driverversion=8.048.00-NAPI latency=0 link=no multicast=yes port=twisted 
  pair
                  resources: irq:125 ioport:3000(size=256) memory:a1304000-a1304fff memory:a1300000-a1303fff

        *-generic
                  description: Wireless interface
                  product: RTL8822BE 802.11a/b/g/n/ac WiFi adapter
                  vendor: Realtek Semiconductor Co., Ltd.
                  physical id: 0
                  bus info: pci at 0000:05:00.0
                  logical name: wlp5s0
                  version: ff
                  serial: f8:a2:d6:f2:20:f9
                  width: 32 bits
                  clock: 66MHz
                  capabilities: bus_master vga_palette cap_list ethernet physical wireless
                  configuration: broadcast=yes driver=rtw_pci driverversion=5.4.0-47-generic firmware=N/A latency=255 link=no maxlatency=255 mingnt=255 
  multicast=yes wireless=IEEE 802.11
                  resources: irq:138 ioport:2000(size=256) memory:a1200000-a120ffff

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.25
  ProcVersionSignature: Ubuntu 5.4.0-47.51-generic 5.4.55
  Uname: Linux 5.4.0-47-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.8
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Sep 13 20:29:04 2020
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: release-upgrade
  UpgradeStatus: Upgraded to focal on 2020-08-12 (32 days ago)
  VarLogDistupgradeApttermlog: Error: [Errno 13] Permission denied: '/var/log/dist-upgrade/apt-term.log'
  VarLogDistupgradeTermlog:

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